Window-blind operator



(No Model.)

R. E. HALL. WINDOW BLIND OPERATOR.

No. 516,681. Patenredmar. 2,018

ATTONEY UNITED STATES PATENT OFFICE.

. ROERT E. HALL, OF WATERBURY, CONNECTICUT.

wlNDow-BLIND OPERATOR.`

SPECIFICATION forming part of Letters Patent No. 516,681, dated March 20, 1894.-.

Application illed May 29, 1893. Serial No. 475,920. (No model.)

i To @ZZ whom it may concern.:

Be it known that I, ROBERT E. HALL, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Window-Blind Operators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

My invention relates to window blinds, but has particular reference to devices for operating the blinds from the inside of the house or building.

The object of my invention is to provide simple and efficient means for accomplishing this result, and with this end in view, my invention consists in the details of construction and combination of elements such as will be hereinafter fully described Aand then specitically designated by the claim.

In the accompanying drawings-Figure lis an exterior elevation of a building, broken away, and showing a window equipped withA my improvement; Fig. 2 a section at the line -cc of Fig. 1; Fig. 3 a section at thelinew-- of Fig. 2, and Fig. 4 a detail perspective of the operative parts of my invention.

Similar numbers of reference denote like parts in the several figures of the drawings.

l are the lblinds which are hinged at 2 near the sides of the window in the usual manner.

3 is a plate which is rigidly secured to the bottom of the blind, and 4 is a rod rigid with said plate and extending downwardly there- `from in vertical axial alignment with the hinge 2, and loosely through the sill 5. Rigidly secured at the lower end of said rod beloW said sill is a horizontally disposed disk 6 from the lower face of which and from quadrantal points near the periphery thereof depend a long crank pin 7 and a short crank pin 8.

9 is a bracket secured to the wall 10 on the inside thereof, and 1l is a short shaft journaled vertically in said bracket and having secured on its upper end the disk 12. This disk 12 extends in a horizontal plane and from its upper face and from quadrantal points near the periphery thereof project al long crank pin 13 and a short crank pin 14.

15, 16, are crank-rods which respectively connect the pins 6, 14, and the pins 8, 13, said rods being pivotally connected to these pins so as to act as drivers to impart rotary motion from one disk to the other. j These rods are connected tothe extreme ends of the pins, and since the'long pin 13 which projects upward is connected by the rod 15 to the short pin 8 which depends, and since the depend-V ing long pin 7 is connected by the rod 16 to the upwardly projecting short pin 14, the rod 15 will be in a plane normally above that of the rod 16, so that it will be readily understood that these lrods will not interfere with each` other during the rotation of the disks, presently kto .be explained.

Rigidlj,T secured to the lower end of the short shaft 11 is a handle 17, which latter in normal position is close to the wall 10 in parallelism therewith as shown at Fig. 3.

The operation of my improvement is as follows:-The handle 17 is swung around from a position on one side of the bracket 9 to a position on the other side of such bracket, thereby imparting to the disks half'of a complete rotation, and swinging the blind from closed to open position or vice versa as the case may be. It will be seen that, in order to give the rods sufficient room within'which to operate, it is necessary that an opening 18 be cut through the wall of thev house just beneath the sill of the window as wide as the stroke of the rods. This opening I prefer to cover, on the outside and inside of the wall, with metal caps 19, 20, t

secured in position in any ordinary manner asby screws 21, 22, thereby preventing the beating into the building or house of storms or inclement weather. The rods may, if desired, be jointed so as to be extensible to provide for walls of diderenty thickness. Also any suitable catch may be employed to secure he handle in its position on either side of the bracket 9, to lock the blind in open or closedposition.

' Having thus described my invention,'what I claim as new, and desire to secure by Letters Patent, is

In a device for operating window blindsfrom `the inside of a house or building, the combination of the rod rigidwith the blind and depending in axial alignment with the hinge of said blind, the disk rigidly secured at the lower extremity of said rod and having along and short crank pin depending from quadrantal points near the periphery thereof, the short shaft journaled in a suitable bearing at the inside of the wall and having secured to its upper end the disk, the long and short crank pins which project upward from the latter at quadrantal points near the periphery thereof, the crank rods having their ends pivotally con- I -nected each to a long and short crank pin,

and a handle rigidly attached to said shaft whereby the latter may be revolved, substantia'lly as shown and described.

In testimony whereof I afx my si gnature in presence of two witnesses.

ROBERT E. HALL.

Witn esses:

NoLLI'r R. BRoNsoN, JOHN P. KELLOGG; 

